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Nitrogen is a common element, present in every living organism. It is vital to lifecycles and important in many industrial processes in its different forms. Organic nitrogen occurs in proteins, peptides, nucleic acids, urea, and many synthetic ... Read More

A differential scanning calorimeter (DSC) is a benchtop instrument used to determine thermodynamic transitions and heat capacities of a variety of substances. A small sample—typically 5–20 mg, around the size of the tip of a #2 pencil—is placed in ... Read More

Forensic laboratories face the need to analyze many samples of human blood and body fluids for alcohol content. The most important compound in blood-alcohol (BAC) analysis is ethanol, but the detection of several other significant alcohols and their ... Read More

For fields that rely on liquid chromatography, the standard today is usually ultra high-performance liquid chromatography (UHPLC). And with good reason—compared to its chromatography predecessors, UHPLC is faster, provides better separation, and... Read More

We are all familiar with X-rays, the short, highly energetic waves used by dentists to check for cavities, and by airport screeners to look for contraband. We experience fluorescence—the phenomenon by which something absorbs energy and in turn ... Read More

Clinical chemistry analyzers run assays on clinical samples such as blood serum, plasma, urine, and cerebrospinal fluid to detect the presence of analytes relating to disease or drugs. Clinical chemistry analyzers are used in a variety of settings, ... Read More